we're joined by defense attorney mark o'mara. thanks for coming in. >> certainly. >> before we get to the cancellation, do you have an immediate reaction to what trayvon martin's dad said here in washington today? >> look. i don't think it's my place to define who trayvon martin was. we were very careful during the trial not to impugn trayvon martin's integrity. quite honestly, if the foundation of the family wants to remember him in a certain way, they're entitled to it and they should. my only concern was trying to define who george zimmerman was and the fact that he reacted to violence that he had to react to that night only as a last resort. >> let's talk about the news conference today. all of a sudden it was canceled. the family that george zimmerman helped, didn't want to go forward at the news con frechbls i know you were involved in getting that together. what happened? >> well, unfortunately, you know, an event happened last week where jourj did what any good samaritan was. he was right there pulling out the two kids an